The width of a rectangle is 9 inches less than 4 times the length. If x represents the length, how do you write an algebraic expression in terms of x that represents the area of the rectangle?
1 Answer
Mar 20, 2016
Area
Explanation:
We will convert the variable to include
Breaking down the question into its component parts
Let width be
Let length be
Let area be
The width of a rectangle
is
9 inches less than
4 times
the length
If x represents length
Width
Area is calculated by
In this case
Substituting for width gives
Multiplying out the bracket gives